JPS586963Y2 - Exposed insert for buildings - Google Patents

Description

[Detailed description of the invention] This invention relates to an exposed insert that is buried mainly in the slab of a reinforced concrete structure and from which ceilings, piping, etc. are suspended.

In conventional construction inserts, the inserts are secured to the formwork by nailing or by installing inserts that are integrated with nails.

However, in the former case, installation work in a narrow space is extremely difficult and inefficient.

In addition, after dismantling the formwork, the insert nails protruding from the surface of the concrete frame must be broken and disposed of, which is time-consuming and causes rust, which detracts from the beauty of the building.

Therefore, it was not suitable for exposed concrete structures, and its uses were limited.

This invention was developed in view of the drawbacks of the conventional method, and is intended to ensure and facilitate the nail treatment after demolding, improve the efficiency of concrete pouring work, and enhance the rust prevention effect.

The configuration of this invention will be explained below based on drawings of embodiments.

FIG. 1 is a central vertical sectional view showing one embodiment.

1 is mainly made of metal, with a flange-shaped anchor part 1a on the top,
A thread 1b is provided to an appropriate depth inside the body 1C from the bottom surface of the body 1C.

2 is an erodible seat body, in the center of which is a body 1C of the metal main body 1;
A plurality of blind holes 2a are formed in the bottom surface of the seat portion 2C.

The depth of the insertion hole 2b is set to be an appropriate amount deeper than the body length of the metal main body 1.

3 is a sleeve having a nail 4 protruding from its tip, which is press-fitted into the blind hole 2a of the non-corrosive seat body.

In order to use the punched insert of this invention with the above structure, as shown in the cross-sectional view of FIG. When tapped, the nails 4 of the sleeve 3 are driven into the formwork B and fixed to the formwork B.

During demolding, the sleeve 3 is separated from the insert together with the mold B.

If it does not separate, it can be easily removed by pinching the nail 4 at the tip with pliers and pulling.

Next, a suspension bolt is screwed into the metal main body 1, and the ceiling, piping, etc. are suspended.

As detailed above, according to the exposed insert of this invention, the nail treatment after demolding can be reliably and easily performed, and the efficiency of concrete pouring work can be improved, as well as the rust prevention effect and aesthetic appearance can be enhanced.

In addition, the sleeve driven into the formwork can be easily removed, which is of great practical value as repairing the formwork does not require much effort.

[Brief explanation of the drawing]

FIG. 1 is a central vertical cross-sectional view showing an embodiment of the punch-out insert of this invention, and FIG. 2 is a cross-sectional view showing its use. 1... Metal main body, 2... Incorrosive seat body, 3... Sleeve, 4... Nail, B...
...Formwork.

Claims (1)

[Scope of utility model registration request] A part of the flange-like anchor is provided at the top, a metal main body with a thread is provided inside the body from the bottom of the body, and an insertion hole into which the body of the metal main body is inserted is provided in the center. An extruded insert for buildings comprising an incorrosive seat with holes bored at appropriate places on the bottom, and a sleeve with a nail protruding at the tip that is press-fitted into the hole in the bottom of the incorrosive seat.